Volumes in this series consist of original research concerned with the applications, theory, philosophy, and history of measurement. The chapters are selected from among the presentations at a biennial conference: The International Objective Measurement Workshop. In most volumes, the chapters are grouped into three themes: Measurement practice, Measurement theory, and Mathematical and statistical applications to measurement. These categories are supplemented in some volumes by topical groupings such as multidimensional approaches, and historical and philosophical perspectives. The chapters represent the richness and depth of the field, and span a wide range in terms of topic and technicality.